John Ryan Marlin, M.D.

NPI 1598846370ActiveIndividual· Family Medicine· Delta, CO

Family Medicine (M.D.) in Delta, Colorado, trained at Oregon Health Sciences University School of Medicine (class of 2005). Part D covered 82 prescriptions written in 2024, 91% of them generic. Astrazeneca Pharmaceuticals LP was the largest of 2 companies reporting payments in 2025, $35.81 in all, mostly food and beverage.

Overview

NPI	1598846370
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Oct 18, 2006
Last updated in NPPES	Dec 3, 2013

Specialties and licenses

Taxonomy	Code	License	State
Family Medicine Primary	207Q00000X	44832	CO

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Nov 10, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026	No match	—
New York OMIG · Nov 11, 2026	No match	—
Ohio Medicaid · Nov 11, 2026	No match	—
Pennsylvania Medicheck · Nov 11, 2026	No match	—
Washington HCA · Nov 11, 2026	No match	—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Family Practice (CO)

Part D prescriptions in 2024

Prescriptions (claims)	82 · 141 30-day fills
Patients	32
Total drug cost	$2,173
Generic share	91% of claims

Medicare sources and data years

Education and affiliations

Medical school	Oregon Health Sciences University School of Medicine
Graduation year	2005
Medicare specialty	Family Practice
Secondary specialties	Obstetrics/Gynecology